67-69 Small Block Chevy F-Body headers. 1 7/8", .065 wall thickness, CNC mandrel bent primary tubes. CNC laser cut flanges, 3" 3 bolt collector flange. These headers fit perfectly without dimpling the primary tubes around the steering box. Long tube design provides awesome low end torque and street performance. Sold less gaskets and fasteners. Mill finish. Will work with straight or angle plug heads. Will not work with factory A/C. These are the best fitting header and the only headers designed specifically for 67-69 Camaros. Works great with lowered cars.